// pages/lanyatest/lanyatest.js
Page({
 
  /**
   * 页面的初始数据
   */
  data: {
    info:"未初始化蓝牙适配器",
    connectedDeviceId:"",
    deviceId:"",
    services:"",
    servicesUUID:"",
    serviceId:"",
    notifyCharacteristicsId:"",
    writeCharacteristicsId: "",
    sendmsg:"",
    res:"",
 
  },
 
  lanyatest1(event){
    var that = this;
    wx.openBluetoothAdapter({
      success: function (res) {
        console.log('初始化蓝牙适配器成功')
        //页面日志显示
        that.setData({
          info: '初始化蓝牙适配器成功'
        })
      },
      fail: function (res) {
        console.log('请打开蓝牙和定位功能')
        that.setData({
          info: '请打开蓝牙和定位功能'
        })
      }
    })
  },
 
 
 
  lanyatest2(event){
    var that = this;
    wx.getBluetoothAdapterState({
 
      success: function (res) {
 
        //打印相关信息
        console.log(JSON.stringify(res.errMsg) + "\n蓝牙是否可用：" + res.available);
 
        that.setData({
          info: JSON.stringify(res.errMsg) +"\n蓝牙是否可用：" + res.available
        })
 
      },
      fail: function (res) {
 
        //打印相关信息
        console.log(JSON.stringify(res.errMsg) + "\n蓝牙是否可用：" + res.available);
 
        that.setData({
          info: JSON.stringify(res.errMsg) + "\n蓝牙是否可用：" + res.available
        })
 
      }
      
    })
 
  },
 
 
 
  lanyatest3(event){
    var that = this;
    wx.startBluetoothDevicesDiscovery({
      //services: ['FEE7'], //如果填写了此UUID，那么只会搜索出含有这个UUID的设备，建议一开始先不填写或者注释掉这一句
      services: ['0000FFE0-0000-1000-8000-00805F9B34FB'], //如果填写了此UUID，那么只会搜索出含有这个UUID的设备，建议一开始先不填写或者注释掉这一句
      success: function (res) {
        that.setData({
          info: "搜索设备" + JSON.stringify(res),
        })
        console.log('搜索设备返回' + JSON.stringify(res))
 
      }
    })
 
  },
 
 
 
 
  lanyatest4(event){
    var that = this;
    wx.getBluetoothDevices({
      success: function (res) {
 
        that.setData({
          info: "设备列表\n" + JSON.stringify(res.devices),
          devices: res.devices
        })
        console.log('搜设备数目：' + res.devices.length)
        console.log('设备信息：\n' + JSON.stringify(res.devices)+"\n")
      }
    })
 
  },
 
 
 
  lanyaconnect(event){
    var that = this;
    wx.createBLEConnection({
      deviceId: event.currentTarget.id,
      success: function (res) {
        console.log('调试信息：' + res.errMsg);
        that.setData({
          connectedDeviceId: event.currentTarget.id,
          info: "MAC地址：" + event.currentTarget.id  + '  调试信息：' + res.errMsg,
          
        })
      },
      fail: function () {
        console.log("连接失败");
      },
 
    })
 
  },
 
 
  lanyatest6(event){
    var that = this;
    wx.stopBluetoothDevicesDiscovery({
      success: function (res) {
        console.log("停止搜索" + JSON.stringify(res.errMsg));
        that.setData({
          info: "停止搜索"  + JSON.stringify(res.errMsg),
        })
      }
    })
 
  },
 
 
 
  lanyatest7(event){
    var that = this;
    wx.getBLEDeviceServices({
      // 这里的 deviceId 需要在上面的 getBluetoothDevices 或 onBluetoothDeviceFound 接口中获取
      deviceId: that.data.connectedDeviceId,
      success: function (res) {
        console.log('services UUID:\n', JSON.stringify(res.services));
        for (var i = 0; i < res.services.length; i++) {
          console.log("第"+(i+1) + "个UUID:" + res.services[i].uuid+"\n")
          
 
        }
        that.setData({
          services: res.services,
          servicesUUID: '0000FFE0-0000-1000-8000-00805F9B34FB',
          info: JSON.stringify(res.services),
        })
      }
    })
 
  },
 
 
 
  lanyatest8(event){
    var that = this;
    var myUUID = that.data.servicesUUID;//具有写、通知属性的服务uuid
    console.log('UUID:' + myUUID)
    wx.getBLEDeviceCharacteristics({
      // 这里的 deviceId 需要在上面的接口中获取
      deviceId: that.data.connectedDeviceId,
      // 这里的 serviceId 需要在上面的 接口中获取
      serviceId: myUUID,
      success: function (res) {
        console.log("%c getBLEDeviceCharacteristics", "color:red;");    
        for (var i = 0; i < res.characteristics.length; i++) {
          console.log('特征值：' + res.characteristics[i].uuid)
 
          if (res.characteristics[i].properties.notify) {
            console.log("notifyServicweId：", myUUID);
            console.log("notifyCharacteristicsId：", res.characteristics[i].uuid);
            that.setData({
              notifyServicweId: myUUID,
              notifyCharacteristicsId: res.characteristics[0].uuid
 
            })
          }
          if (res.characteristics[i].properties.write) {
            console.log("writeServicweId：", myUUID);
            console.log("writeCharacteristicsId：", res.characteristics[i].uuid);
            that.setData({
              writeServicweId: myUUID,
              writeCharacteristicsId: '0000FFE1-0000-1000-8000-00805F9B34FB',//手动设置writeCharacteristicsId为这个UUID，为了方便写死在这里
            })
 
          }
 
        }
        console.log('device getBLEDeviceCharacteristics:', res.characteristics);
 
        that.setData({
          msg: JSON.stringify(res.characteristics),
        })
      },
      fail: function (res) {
        console.log(res);
      },
 
    })
 
  },
 
  
 
  //必须先启用notifyCharacteristicsId才能监听characteristicValueChange事件
  lanyatest9(event){
    var that = this;
    var notifyServicweId = that.data.servicesUUID;  //具有写、通知属性的服务uuid
    var notifyCharacteristicsId = that.data.notifyCharacteristicsId;
    console.log("启用notify的serviceId", notifyServicweId);
    console.log("启用notify的notifyCharacteristicsId", notifyCharacteristicsId);
 
    wx.notifyBLECharacteristicValueChange({
      state: true, // 启用 notify 功能
      deviceId: that.data.connectedDeviceId,
      // 这里的 serviceId 就是that.data.servicesUUID
      serviceId: notifyServicweId,
 
      characteristicId: that.data.notifyCharacteristicsId,
      success: function (res) {
        //console.log('notifyBLECharacteristicValueChange success', res.errMsg)
        //var msg = '启动notify:' + res.errMsg
        that.setData({
          info: "开启notify成功"
        })
      },
      fail: function (res) {
        console.log('启动notify:' + res.errMsg);
        
      },
    })
 
 
  },
 
 
 
  lanyatest10(event){
    var that = this;
    console.log("开始接收数据");
 
    wx.onBLECharacteristicValueChange(function (res) {
      
      console.log("characteristicId：" + res.characteristicId)
      console.log("serviceId:" + res.serviceId)
      console.log("deviceId" + res.deviceId)
      console.log("Length:" + res.value.byteLength)
      console.log("hexvalue:" + ab2hex(res.value))
      that.setData({
        info: that.data.info + ab2hex(res.value)
      })
 
    })
 
  },
 
 
 
 
  lanyatest11(event){
    var that = this
    
    var hex = that.data.sendmsg  //要发送的信息
    console.log('要发送的信息是：'+hex)
    var typedArray = new Uint8Array(hex.match(/[\da-f]{2}/gi).map(function (h) {
      return parseInt(h, 16)
    }))
    console.log(typedArray)
    var buffer1 = typedArray.buffer
    console.log(that.data.connectedDeviceId)
    console.log(that.data.servicesUUID)
    console.log(that.data.writeCharacteristicsId)
    wx.writeBLECharacteristicValue({
      
      deviceId: that.data.connectedDeviceId,
      serviceId: that.data.servicesUUID,
      characteristicId: that.data.writeCharacteristicsId,
      // 这里的value是ArrayBuffer类型
      value: buffer1,
      success: function (res) {
        console.log('写入成功', res.errMsg)
      },
      fail(res){
        console.log(res.errCode)
        console.log('写入失败', res.errMsg)    
      }
    })
 
  },
 
 
 
  //获取输入框的数据
  getmsg(event){
    this.setData({
      sendmsg:event.detail.value
    })
    
  },
 
 
 
  lanyatest12(event){
    var that = this;
    wx.closeBLEConnection({
      deviceId: that.data.connectedDeviceId,
      success: function (res) {
        that.setData({
          connectedDeviceId: "",
        })
        console.log('断开蓝牙设备成功：' + res.errMsg)
      },
      fail:function(res){
        console.log('断开蓝牙设备失败：' + res.errMsg)
      }
    })
 
  }
 
 
//我删除了自动生成的生命周期函数
 
})
 
// 微信官方给的ArrayBuffer转16进度字符串示例
function ab2hex(buffer) {
  var hexArr = Array.prototype.map.call(
    new Uint8Array(buffer),
    function (bit) {
      return ('00' + bit.toString(16)).slice(-2)
    }
  )
  return hexArr.join(',');
}